阅读说明：本技术 城市设计用组合模型展示设备 (Combined model display equipment for city design ) 是由 安彩华 郭延光 郭乐安 何晓强 于 2021-07-07 设计创作，主要内容包括：本发明公开了一种城市设计用组合模型展示设备,涉及城市规划技术领域,包括转动支撑结构和城市设计模型安装板,城市设计模型粘结在城市设计模型安装板的顶部,所述转动支撑结构包括第一箱体、支撑柱、牛眼万向球、立柱、第一锥齿轮、第二锥齿轮、驱动电机和支撑圆板,所述驱动电机固定在第一箱体的内底部,所述城市设计模型安装板(4)相互贴合接触,且第二箱体(301)的内壁与城市设计模型安装板(4)的外壁贴合接触,所述第二箱体(301)的顶部和城市设计模型安装板(4)的顶部齐平。本发明方便进行更换,无需城市设计模型整体更换,降低更换成本高。(The invention discloses combined model display equipment for city design, which relates to the technical field of city planning and comprises a rotary supporting structure and a city design model mounting plate, wherein a city design model is bonded on the top of the city design model mounting plate, the rotary supporting structure comprises a first box body, a supporting column, a bull eye universal ball, a stand column, a first bevel gear, a second bevel gear, a driving motor and a supporting circular plate, the driving motor is fixed on the inner bottom of the first box body, the city design model mounting plates (4) are mutually attached and contacted, the inner wall of a second box body (301) is attached and contacted with the outer wall of the city design model mounting plate (4), and the top of the second box body (301) is flush with the top of the city design model mounting plate (4). The invention is convenient to replace, does not need to replace the whole city design model, and reduces the replacement cost.)

1. The utility model provides a combination model display device for city design, includes rotates bearing structure (1) and city design model mounting panel (4), and the city design model bonds at the top of city design model mounting panel (4), its characterized in that: the rotary supporting structure (1) comprises a first box body (101), a supporting column (102), a bull eye universal ball (103), a stand column (104), a first bevel gear (105), a second bevel gear (106), a driving motor (107) and a supporting circular plate (108); the driving motor (107) is fixed at the inner bottom of the first box body (101), the output end of the driving motor (107) is fixedly connected with a first bevel gear (105), and the middle end of the inner bottom of the first box body (101) is rotatably connected with a stand column (104) through a bearing; a second bevel gear (106) is fixed at the lower end of the upright column (104), the second bevel gear (106) is meshed with the first bevel gear (105), and a supporting circular plate (108) is fixedly connected to the top of the upright column (104); a supporting column (102) for supporting is fixed to the bottom of the supporting circular plate (108) along the circumferential direction, a bull-eye universal ball (103) is rotatably connected to the bottom of the supporting column (102), and the bottom of the bull-eye universal ball (103) is attached to the inner bottom of the first box body (101) in a sliding connection mode;

the top of the supporting circular plate (108) is connected with an ejection structure (2), the ejection structure (2) comprises a second box body (201), a second rocker (208) and a second rotary disc (210), wherein: a conductive plate (214) is fixed at the inner top of the second box body (201), a first straight groove (202) is formed in the front side of the right end of the second box body (201), and a second straight groove (212) is formed in the rear end of the second box body (201); the front end of the inner bottom of the second box body (201) is symmetrically and fixedly connected with a straight block (213), the straight block (213) is rotatably connected with a first threaded rod (206) through a fixedly connected bearing, and the outer end of the first threaded rod (206) is fixedly connected with a first rotary table (205); a first rocker (203) used for the first rotary disc (205) to rotate is fixedly connected to the outer edge of the outer wall of the first rotary disc (205), a U-shaped plate (215) is in threaded connection with the first threaded rod (206), and the bottom of the front end of the U-shaped plate (215) is attached to the inner bottom of the second box body (201) in a sliding connection; the U-shaped plate (215) slides in the second straight groove (212), and a first scale (204) used for determining the position of the electric push rod (207) on the X axis is fixedly connected to the U-shaped plate (215); the upright part of the U-shaped plate (215) is rotatably connected with a second threaded rod (211) through a bearing, the outer end of the second threaded rod (211) is fixedly connected with a second turntable (210), and the outer end of the second turntable (210) is fixedly connected with a second rocker (208) for driving the second turntable (210) to rotate; the second threaded rod (211) is in threaded connection with a sliding block (216) which is attached to and slidably connected with the U-shaped plate (215), the left side wall and the right side wall of the sliding block (216) are respectively and fixedly connected with a second scale (209) and a conductive pin (217), the bottom of the conductive pin (217) is attached to and slidably connected with the top of the U-shaped plate (215), and an electric push rod (207) is fixed to the top of the sliding block (216);

the second box (201) is connected with a mounting structure (3), the mounting structure (3) comprises a second box (301) and a hemispherical groove (309), wherein: jacks (303) are uniformly formed in the inner bottom of the second box body (301), a supporting cylinder (302) is connected in the jacks (303) in a fitting and sliding manner, a stop block (305) is fixedly connected to the side wall of the supporting cylinder (302), and the bottom of the stop block (305) is connected with the top of the second box body (301) in a fitting and sliding manner; the inner bottom of the second box body (301) is fixedly connected with supporting blocks (306), and the positions of the supporting blocks (306) correspond to the positions of the jacks (303) one by one; a spring (304) is arranged on the side wall of the supporting block (306), and a pin rod (307) is fixedly connected to the outer end of the spring (304); the inner end of the pin rod (307) is in fit sliding connection with the supporting block (306), the inner end of the pin rod (307) is fixedly connected with a hemispherical block (308), and the side wall of the supporting cylinder (302) is provided with a hemispherical groove (309) matched with the hemispherical block (308); the contact of laminating each other of city design model mounting panel (4), and the inner wall of second box (301) and the outer wall laminating contact of city design model mounting panel (4), the top of second box (301) and the top of city design model mounting panel (4) flush.

2. The combined model display device for urban design according to claim 1, wherein: the bottom of dog (305) and the interior top laminating contact of second box (301) realize supporting a section of thick bamboo (302) and support, and spring (304) drive pin (307) remove simultaneously, and pin (307) drive hemisphere piece (308) insert in hemisphere groove (309) and realize spacing supporting a section of thick bamboo (302), have guaranteed to support a section of thick bamboo (302) stable installation.

3. The combined model display apparatus for urban design according to claim 1, wherein: the electric push rod (207) moves to the position where the city design model mounting plate (4) needs to be replaced, the electric push rod (207) pushes the support cylinder (302) to move upwards to eject the city design model mounting plate (4), and then the corresponding support cylinder (302) is inserted into the insertion hole (303), so that the replacement of the city design model mounting plate (4) is realized.

4. The combined model display apparatus for urban design according to claim 1, wherein: the second scale (209) is used for confirming the position of the electric push rod (207) in the Y-axis direction.

Technical Field

The invention relates to the field of urban planning, in particular to combined model display equipment for urban design.

Background

The specific definition of urban design in the building world generally refers to a design work with cities as research objects, which is a design between urban planning, landscape architecture and building design. Compared with the abstraction and datamation of city planning, the city design has more specificity and imaging; however, since the actual urban design in the middle of the twentieth century is mostly a guide and reference framework for landscape design or building design, the design is different from the specific landscape design or building design.

At present, some combination models can be designed for more intuitive city design display, the combination models are beneficial to displaying of multidimensional maps, the city models need to be replaced along with city development, the existing combination models are integrated, and the overall replacement cost is high.

Disclosure of Invention

The invention aims to provide combined model display equipment for city design, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention has the beneficial effects that: the utility model provides a combination model display device for city design, includes rotates bearing structure (1) and city design model mounting panel (4), and the city design model bonds at the top of city design model mounting panel (4), its characterized in that: the rotary supporting structure (1) comprises a first box body (101), a supporting column (102), a bull eye universal ball (103), a stand column (104), a first bevel gear (105), a second bevel gear (106), a driving motor (107) and a supporting circular plate (108); the driving motor (107) is fixed at the inner bottom of the first box body (101), the output end of the driving motor (107) is fixedly connected with a first bevel gear (105), and the middle end of the inner bottom of the first box body (101) is rotatably connected with a stand column (104) through a bearing; a second bevel gear (106) is fixed at the lower end of the upright column (104), the second bevel gear (106) is meshed with the first bevel gear (105), and a supporting circular plate (108) is fixedly connected to the top of the upright column (104); a supporting column (102) for supporting is fixed to the bottom of the supporting circular plate (108) along the circumferential direction, a bull-eye universal ball (103) is rotatably connected to the bottom of the supporting column (102), and the bottom of the bull-eye universal ball (103) is attached to the inner bottom of the first box body (101) in a sliding connection mode;

the top of the supporting circular plate (108) is connected with an ejection structure (2), the ejection structure (2) comprises a second box body (201), a second rocker (208) and a second rotary disc (210), wherein: a conductive plate (214) is fixed at the inner top of the second box body (201), a first straight groove (202) is formed in the front side of the right end of the second box body (201), and a second straight groove (212) is formed in the rear end of the second box body (201); the front end of the inner bottom of the second box body (201) is symmetrically and fixedly connected with a straight block (213), the straight block (213) is rotatably connected with a first threaded rod (206) through a fixedly connected bearing, and the outer end of the first threaded rod (206) is fixedly connected with a first rotary table (205); a first rocker (203) used for the first rotary disc (205) to rotate is fixedly connected to the outer edge of the outer wall of the first rotary disc (205), a U-shaped plate (215) is in threaded connection with the first threaded rod (206), and the bottom of the front end of the U-shaped plate (215) is attached to the inner bottom of the second box body (201) in a sliding connection; the U-shaped plate (215) slides in the second straight groove (212), and a first scale (204) used for determining the position of the electric push rod (207) on the X axis is fixedly connected to the U-shaped plate (215); the upright part of the U-shaped plate (215) is rotatably connected with a second threaded rod (211) through a bearing, the outer end of the second threaded rod (211) is fixedly connected with a second turntable (210), and the outer end of the second turntable (210) is fixedly connected with a second rocker (208) for driving the second turntable (210) to rotate; the second threaded rod (211) is in threaded connection with a sliding block (216) which is attached to and slidably connected with the U-shaped plate (215), the left side wall and the right side wall of the sliding block (216) are respectively and fixedly connected with a second scale (209) and a conductive pin (217), the bottom of the conductive pin (217) is attached to and slidably connected with the top of the U-shaped plate (215), and an electric push rod (207) is fixed to the top of the sliding block (216);

the second box (201) is connected with a mounting structure (3), the mounting structure (3) comprises a second box (301) and a hemispherical groove (309), wherein: jacks (303) are uniformly formed in the inner bottom of the second box body (301), a supporting cylinder (302) is connected in the jacks (303) in a fitting and sliding manner, a stop block (305) is fixedly connected to the side wall of the supporting cylinder (302), and the bottom of the stop block (305) is connected with the top of the second box body (301) in a fitting and sliding manner; the inner bottom of the second box body (301) is fixedly connected with supporting blocks (306), and the positions of the supporting blocks (306) correspond to the positions of the jacks (303) one by one; a spring (304) is arranged on the side wall of the supporting block (306), and a pin rod (307) is fixedly connected to the outer end of the spring (304); the inner end of the pin rod (307) is in fit sliding connection with the supporting block (306), the inner end of the pin rod (307) is fixedly connected with a hemispherical block (308), and the side wall of the supporting cylinder (302) is provided with a hemispherical groove (309) matched with the hemispherical block (308); the contact of laminating each other of city design model mounting panel (4), and the inner wall of second box (301) and the outer wall laminating contact of city design model mounting panel (4), the top of second box (301) and the top of city design model mounting panel (4) flush.

In the scheme, the bottom of the stop block (305) is in contact with the inner top of the second box body (301) in an attaching mode to support the supporting cylinder (302), meanwhile, the spring (304) drives the pin rod (307) to move, the pin rod (307) drives the hemispherical block (308) to be inserted into the hemispherical groove (309) to limit the supporting cylinder (302), and stable installation of the supporting cylinder (302) is guaranteed.

In the scheme, the electric push rod (207) moves to the position where the city design model mounting plate (4) needs to be replaced, the electric push rod (207) pushes the support cylinder (302) to move upwards to eject the city design model mounting plate (4), and then the corresponding support cylinder (302) is inserted into the insertion hole (303), so that the replacement of the city design model mounting plate (4) is realized.

In this case, the second scale (209) is used to confirm the position of the electric putter (207) in the Y-axis direction.

Has the advantages that: according to the mounting structure, the supporting cylinder is inserted into the inserting hole, the supporting cylinder is supported by the stop block, meanwhile, the spring drives the pin rod to move when the hemispherical groove moves to the hemispherical block, the pin rod drives the hemispherical block to be inserted into the hemispherical groove, the hemispherical block realizes limiting on the supporting cylinder, mounting of the urban design model mounting plate is realized, meanwhile, the supporting cylinder is moved upwards, the inserting hole drives the hemispherical block to be separated from the hemispherical groove, dismounting of the urban design model mounting plate is realized, the urban design model mounting plate is convenient to replace, the urban design model is not required to be integrally replaced, and replacement cost is reduced;

according to the invention, a first rocker of an ejection structure drives a first rotary disc to rotate, the first rotary disc drives a first threaded rod to rotate, the first threaded rod drives a U-shaped plate to move, a first scale moves along with the U-shaped plate, the first scale determines the position of an electric push rod on an X axis, then a second rocker is rotated, the second rocker drives a second rotary disc to rotate, the second rotary disc drives a second threaded rod to rotate, the second threaded rod drives a sliding block to move, the sliding block drives an electric push rod to move, the second scale determines the position of the electric push rod on a Y axis, the electric push rod moves to the position under a supporting cylinder needing to be replaced, the electric push rod starts the electric push rod through the cooperation of an external switch, a current-conducting plate and a current-conducting needle, the electric push rod pushes the supporting cylinder to move upwards, and the supporting cylinder conveniently moves upwards;

according to the invention, the driving motor of the rotary supporting structure drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the stand column to rotate, the stand column drives the supporting circular plate to rotate, the supporting circular plate drives the urban design combined model to rotate, the urban design combined model can be conveniently rotated to different angles for display, the display is facilitated, meanwhile, the supporting circular plate is conveniently supported by matching of the supporting columns and the bull-eye universal balls, and the rotary stability of the second box body is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a rear elevational view of the present invention;

FIG. 3 is a rear view of the structure of the present invention;

FIG. 4 is a right side view of the structure of the present invention;

FIG. 5 is a sectional view of a second case and its structure according to the present invention;

FIG. 6 is a cross-sectional view of a first threaded rod and its attachment structure of the present invention;

FIG. 7 is a schematic view of the electric putter and the connecting structure thereof according to the present invention;

FIG. 8 is a sectional view of a U-shaped plate and its connecting structure according to the present invention;

FIG. 9 is an enlarged view of the structure at A of FIG. 6 according to the present invention;

FIG. 10 is a schematic view of a support column and its connection structure according to the present invention;

Detailed Description

The present invention will be further described with reference to the following examples.

Example 1

As shown in fig. 1, 6, 7 and 10, a combined model display device for city design comprises a rotary support structure 1 and a city design model mounting plate 4, wherein the city design model is adhered on the top of the city design model mounting plate 4, all city design models connected with the city design model mounting plate 4 are combined into a city design combined model, the rotary support structure 1 comprises a first box 101, a support column 102, a bull's eye universal ball 103, a vertical column 104, a first bevel gear 105, a second bevel gear 106, a driving motor 107 and a support circular plate 108, the driving motor 107 is fixed on the inner bottom of the first box 101, the output end of the driving motor 107 is fixedly connected with the first bevel gear 105, the vertical column 104 is rotatably connected at the inner bottom end of the first box 101 through a bearing fixedly connected, the second bevel gear 106 is fixed at the lower end of the vertical column 104, and the second bevel gear 106 is meshed with the first bevel gear 105, a supporting circular plate 108 is fixedly connected to the top of the upright post 104, supporting columns 102 for supporting are uniformly and fixedly connected to the bottom of the supporting circular plate 108 along the circumferential direction, a bullseye universal ball 103 is rotatably connected to the bottom of each supporting column 102, the bottom of the bull's eye universal ball 103 is in fit sliding connection with the inner bottom of the first box 101, 3-6 groups of support columns 102 are provided, a driving motor 107 for rotating the support structure 1 drives a first bevel gear 105 to rotate, the first bevel gear 105 drives a second bevel gear 106 to rotate, the second bevel gear 106 drives a stand column 104 to rotate, the stand column 104 drives a support circular plate 108 to rotate, the support circular plate 108 drives the city design combination model to rotate, the city design combination model can be conveniently rotated to different angles for display, and the display is facilitated, meanwhile, the supporting column 102 and the bull eye universal ball 103 are matched to conveniently support the supporting circular plate 108, so that the rotation stability of the second box body 201 is ensured;

example 2

Example 2 is a further modification to example 1.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, and 8, the top of the supporting circular plate 108 is connected with an ejecting structure 2, the ejecting structure 2 includes a second box 201, a first straight groove 202, a first rocker 203, a first scale 204, a first rotary disc 205, a first threaded rod 206, an electric push rod 207, a second rocker 208, a second scale 209, a second rotary disc 210, a second threaded rod 211, a second straight groove 212, a straight block 213, a conductive plate 214, a U-shaped plate 215, a slider 216, and a conductive pin 217, the inner top of the second box 201 is fixed with the conductive plate 214, the front side of the right end of the second box 201 is provided with the first straight groove 202, the rear end of the second box 201 is provided with the second straight groove 212, the front side of the inner bottom of the second box 201 is symmetrically and fixedly connected with the straight block 213, the straight block 213 is rotatably connected with the first threaded rod 206 through a fixedly connected bearing, the outer end of the first threaded rod 206 is fixedly connected with the first rotary disc 205, a first rocker 203 used for the rotation of the first rotary disc 205 is fixedly connected to the outer edge of the outer wall of the first rotary disc 205, a U-shaped plate 215 is in threaded connection with a first threaded rod 206, the bottom of the front end of the U-shaped plate 215 is in fit sliding connection with the inner bottom of the second box 201, the U-shaped plate 215 slides in a second straight groove 212, the U-shaped plate 215 is fixedly connected with a first scale 204 used for determining the position of the electric push rod 207 on the X axis, the upright part of the U-shaped plate 215 is rotatably connected with a second threaded rod 211 through a fixedly connected bearing, the outer end of the second threaded rod 211 is fixedly connected with a second rotary disc 210, the outer end of the second rotary disc 210 is fixedly connected with a second rocker 208 used for driving the second rotary disc 210 to rotate, the second threaded rod 211 is in threaded connection with a sliding block 216 in fit sliding connection with the U-shaped plate 215, the left and right side walls of the sliding block 216 are respectively fixedly connected with a second scale 209 and a conductive pin 217, and the bottom of the conductive pin 217 is in fit sliding connection with the top of the U-shaped plate 215, an electric push rod 207 is fixed on the top of a sliding block 216, the top of a supporting circular plate 108 is fixedly connected with the bottom of a second box 201, the top of a second rotary disc 210 is in fit sliding connection with a first box 101, a first scale 204 moves in a first straight groove 202, a conductive plate 214 is arranged in a groove of a U-shaped plate 215 and is not in contact with the U-shaped plate 215, the conductive plate 214 is electrically connected with an external power supply, the conductive plate 214 is electrically connected with the electric push rod 207 through a conductive pin 217, a second scale 209 is used for confirming the position of the electric push rod 207 in the Y-axis direction, a first rocker 203 of an ejection structure 2 drives a first rotary disc 205 to rotate, the first rotary disc 205 drives a first threaded rod 206 to rotate, the first threaded rod 206 drives the U-shaped plate 215 to move, the first scale 204 moves along with the U-shaped plate 215, the first scale 204 determines the position of the electric push rod 207 in the X-axis and then rotates a second rocker 208, the second rocker 208 drives the second turntable 210 to rotate, the second turntable 210 drives the second threaded rod 211 to rotate, the second threaded rod 211 drives the sliding block 216 to move, the sliding block 216 drives the electric push rod 207 to move, the second scale 209 determines the position of the electric push rod 207 on the Y axis, the electric push rod 207 moves to the position under the supporting cylinder 302 needing to be replaced, the electric push rod 207 is started through the cooperation of an external switch, the conductive plate 214 and the conductive needle 217, the electric push rod 207 pushes the supporting cylinder 302 to move upwards, and the supporting cylinder 302 is convenient to move upwards;

example 3

Example 3 is a further modification to example 1.

As shown in fig. 2, 5, 7, 8 and 9, the second box 201 is connected with a mounting structure 3, the mounting structure 3 includes a second box 301, a supporting cylinder 302, insertion holes 303, springs 304, stoppers 305, supporting blocks 306, pins 307, hemispherical blocks 308 and hemispherical grooves 309, the insertion holes 303 are uniformly formed at the inner bottom of the second box 301, the supporting cylinder 302 is slidably connected in the insertion holes 303, the stoppers 305 are fixedly connected to the side walls of the supporting cylinder 302, the bottom of the block 305 is attached to the top of the second box 301 in a sliding manner, the inner bottom of the second box 301 is fixedly connected with a supporting block 306, the positions of the supporting blocks 306 and the positions of the jacks 303 are arranged in a one-to-one correspondence manner, springs 304 are arranged on the side walls of the supporting blocks 306, pin rods 307 are fixedly connected to the outer ends of the springs 304, the inner ends of the pin rods 307 are in fit sliding connection with the supporting blocks 306, hemispherical blocks 308 are fixedly connected to the inner ends of the pin rods 307, and hemispherical grooves 309 matched with the hemispherical blocks 308 are formed in the side walls of the supporting cylinders 302; the top of the supporting cylinder 302 is fixedly connected with an urban design model mounting plate 4, the urban design model mounting plates 4 are mutually attached and contacted, the inner wall of the second box body 301 is attached and contacted with the outer wall of the urban design model mounting plate 4, the top of the second box body 301 is flush with the top of the urban design model mounting plate 4, the bottom of the stop block 305 is attached and contacted with the inner top of the second box body 301 to realize the supporting of the supporting cylinder 302, meanwhile, the spring 304 drives the pin 307 to move, the pin 307 drives the hemispherical block 308 to be inserted into the hemispherical groove 309 to limit the supporting cylinder 302, the stable installation of the supporting cylinder 302 is ensured, the electric push rod 207 moves to the position where the urban design model mounting plate 4 needs to be replaced, the electric push rod 207 pushes the supporting cylinder 302 to move upwards to eject the urban design model mounting plate 4, then the corresponding supporting cylinder 302 is inserted into the jack 303 to realize the replacement of the urban design model mounting plate 4 and realize the replacement of the urban design model, mounting structure 3's a support section of thick bamboo 302 is inserted in jack 303, dog 305 realizes supporting a section of thick bamboo 302, and simultaneously, hemisphere groove 309 removes to hemisphere piece 308 spring 304 and drives pin 307 and remove, pin 307 drives hemisphere piece 308 and inserts in hemisphere groove 309, hemisphere piece 308 realizes spacing to a support section of thick bamboo 302, realize city design model mounting panel 4's installation, and simultaneously, upward movement supports a section of thick bamboo 302, jack 303 drives hemisphere piece 308 and hemisphere groove 309 separation, realize city design model mounting panel 4's dismantlement, make city design model mounting panel 4 conveniently change, need not city design model overall change, reduce the replacement cost.

When the device is used, the city design model mounting plate 4 needs to be replaced, the first rocker 203 of the ejection structure 2 drives the first rotary disc 205 to rotate, the first rotary disc 205 drives the first threaded rod 206 to rotate, the first threaded rod 206 drives the U-shaped plate 215 to move, the first scale 204 moves along with the U-shaped plate 215, the first scale 204 determines the position of the electric push rod 207 on the X axis, then the second rocker 208 is rotated, the second rocker 208 drives the second rotary disc 210 to rotate, the second rotary disc 210 drives the second threaded rod 211 to rotate, the second threaded rod 211 drives the sliding block 216 to move, the sliding block 216 drives the electric push rod 207 to move, the second scale 209 determines the position of the electric push rod 207 on the Y axis, the electric push rod 207 moves to the position under the supporting cylinder 302 needing to be replaced, the electric push rod 207 is started through the cooperation of an external switch, the conductive plate 214 and the conductive needle 217, and the electric push rod 207 pushes the supporting cylinder 302 to move upwards, the supporting cylinder 302 is convenient to move upwards, the supporting cylinder 302 is moved upwards, the insertion hole 303 drives the hemispherical block 308 to be separated from the hemispherical groove 309, the urban design model mounting plate 4 is disassembled, the old urban design model mounting plate 4 is taken away, the supporting cylinder 302 of the mounting structure 3 connected with the new urban design model mounting plate 4 is inserted into the insertion hole 303, the supporting cylinder 302 is supported by the stop block 305, meanwhile, the spring 304 drives the pin rod 307 to move when the hemispherical groove 309 moves to the position of the hemispherical block 308, the pin rod 307 drives the hemispherical block 308 to be inserted into the hemispherical groove 309, the hemispherical block 308 limits the supporting cylinder 302, the urban design model mounting plate 4 is mounted, meanwhile, the urban design model mounting plate 4 is convenient to replace, the urban design model does not need to be integrally replaced, and the replacement cost is reduced;

during the show, the driving motor 107 that rotates supporting structure 1 drives first bevel gear 105 and rotates, first bevel gear 105 drives second bevel gear 106 and rotates, second bevel gear 106 drives stand 104 and rotates, stand 104 drives supporting circular plate 108 and rotates, supporting circular plate 108 drives urban design combination model and rotates, the urban design combination model of being convenient for rotates to different angles and demonstrates, do benefit to the show, and simultaneously, support column 102 and the cooperation of bull's eye universal ball 103 are convenient to support supporting circular plate 108, have guaranteed second box 201 rotational stability.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.